crystal campbell. >> our hearts are broken. everybody that knew her loved her. she loved everybody. >> she had a heart of gold. we are learning that mom thought her daughter survived the blast, according to a friend's facebook post the family learned the truth when they got to the hospital and realized the patient in the room, it was not their daughter after all. she was carrying a friend's i.d.. we don't know name yet of the third person killed but boston university is now confirming the victim was graduate student there. the school not releasing the name because they are waiting permission from the family. >> some doctors finished running the marathon and went straight to work treating the victims. that is one of the stories how boston's world class medical staffers are inspiring this city in this nation. it was one of the most chilling images we saw as the news first broke. we're not showing you worst part what the blast did to a man's leg. an update how he is doing. from the journalists from fox news, as news broke that pieces of the bomb that exploded there